1-(4-Thiazolyl)ethanone
Also known as: 4-Acetylthiazole, Methyl 4-thiazolyl ketone, 1-(1,3-Thiazol-4-yl)ethanone, Ethanone, 1-(4-thiazolyl)-, 1-(Thiazol-4-yl)ethanone, 4-Acetyl-1,3-thiazole
1-(4-Thiazolyl)ethanone (CAS 38205-66-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5NOS and a molecular weight of 127.164 g/mol. Key properties include a melting point of 56ºC, a boiling point of 220.4±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 87.1±19.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 38205-66-2
- Jingsj CID
- J-1377384-7
- Molecular Formula
- C5H5NOS
- Molecular Weight
- 127.164 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 56ºC |
|---|---|
| Boiling Point | 220.4±13.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 87.1±19.8 °C |
| Exact Mass | 127.009186 |
| PSA | 58.20000 |
| LogP | 0.83 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.545 |
Customs & Trade Information
| HS Code | 2934100090 |
|---|---|
| Summary | 2934100090 other compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1-(4-Thiazolyl)ethanone?
The CAS number of 1-(4-Thiazolyl)ethanone is 38205-66-2.
What are the molecular formula and molecular weight of 1-(4-Thiazolyl)ethanone?
1-(4-Thiazolyl)ethanone has molecular formula C5H5NOS and molecular weight 127.164 g/mol.
What are the upstream and downstream products of 1-(4-Thiazolyl)ethanone?
For 1-(4-Thiazolyl)ethanone, Upstream Products: Methylmagnesium iodide, Thiazole-4-carboxylic acid, Methyllithium; Downstream Products: 2-Bromo-1-(thiazol-4-yl)ethanone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-(4-Thiazolyl)ethanone (CAS 38205-66-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1377384-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.